Made in conjunction with the European Space Agency (ESA), OMEGA’s Speedmaster X-33 Marstimer is everything the name suggests.

Cased in grade 2 titanium, the unique 45 mm chronograph can display true solar time at any location on Earth and Mars. Made possible by a new microcontroller, developed and programmed to implement the equation of time for the two planets. This ability to display true solar time at any location allows the watch’s innovative solar compass to find true north on Earth and Mars with exceptional precision. The watch also displays the solar longitude of Mars as well as the mean solar time for three different locations (at the prime meridian + two user-defined locations): allowing for Mars’ 2.7% longer days.

Its classic black dial provides a contrasting backdrop for the multiple analogue and digital readings, made even clearer by Earth and Mars symbols to distinguish which particular functions are in use. Circling the dial is an oxalic anodized aluminium bezel ring in red hematite, reminiscent of Mars’ distinctive dust. This striking shade is also present on the seconds hand, which has a black to red hematite gradient.

Turning the watch over reveals a caseback embossed in the centre with OMEGA’s famous Speedmaster wording and Seahorse logo. Circled by the words SPEEDMASTER X-33 MARSTIMER, ESA TESTED AND QUALIFIED. Providing the power is OMEGA’s 5622 Calibre.

For those wishing to switch out the grade 2 and 5 titanium bracelet, the Marstimer also comes with a dedicated NATO strap. This is included in the special watch roll, which has a nod to the red planet on its inner lining: a reproduction of Hebes Chasma, a unique steep-sided canyon on the surface of Mars.

Features
Alarm: A watch or clock which automatically sounds at a pre-set time.
Bi-directional rotating bezel: A bezel which can be turned clockwise or anti-clockwise. Rotating bezels can be used to time events, measure elapsed times, or read second or third time zones.
Chronograph: The chronograph function is a mechanism for measuring time intervals. A chronograph watch can therefore be used to time events while displaying the time like any traditional watch.
Date: The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o'clock.
Day-Date: Apertures which display both the day of the month (numerical) and the day of the week.
Multifunction: Watch with digital (or combined analogue/digital) display with several functions, such as alarm, chronograph, countdown timer etc. with optional display of the required mode.
Perpetual calendar: Memory function that respects all date changes, including 29th February in leap years (until 28/02/2100).
Time zone function: Allows the hour hand to be easily adjusted to different time zones without stopping the watch.

Technical Data
Reference: 318.90.45.79.01.003
Between lugs: 20 mm
Lug‑to‑lug: 48.50 mm
Thickness: 14.89 mm
Case diameter: 45 mm
Case: Titanium
Dial colour: Black
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 3 bar (30 metres / 100 feet)
Total product weight (approx.): 112 g
Calibre: OMEGA 5622
Movement Type: Quartz
Battery life: 24 months

Bracelet
Material: Titanium
Type of Clasp: Foldover clasp

Movement
Calibre OMEGA 5622: Highly precise, thermo‑compensated, multi‑functional quartz movement with special functions developed, tested and qualified by the European Space Agency (ESA). Calibrated to power multiple digital and analogue displays. Analogue functions include hours, minutes and seconds. Digital functions track time zones and date on Earth and Mars. The Mars functions can track the rover’s mission on the red planet, while the addition of a solar compass allows the watch to find true north on both Earth and Mars. Also included are traditional Speedmaster Skywalker X33 functions, such as MET (Mission Elapsed Time), PET (Phase Elapsed Time), Alarms and perpetual calendar.